Green anarchism is a school of thought within anarchism which puts an emphasis on environmental issues. An important early influence was the thought of the American individualist anarchist Henry David Thoreau and his book Walden[1]. Some green anarchists can be described as anarcho-primitivists (or anti-civilization anarchists), though not all green anarchists are primitivists. Likewise, there is a strong critique of modern technology among green anarchists, though not all reject it entirely.